<template>
    <div>
        <div id="slider" class="mui-slider">
            <div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
                <div class="mui-scroll">
                    <a v-for="item in cates" @click="getCategoryImage(item.id)" :key="item.id" :class="['mui-control-item', item.id === 0 ? 'mui-active' : '']">
                        {{ item.title }}
                    </a>
                </div>
            </div>
        </div>
        <ul class="photo-list">
            <router-link tag="li" v-for="item in list" :key="item.id" :to="'/home/photoinfo/' + item.id">
                <img v-lazy="item.img_url">
                <div class="info">
                    <h1 class="info-title">{{ item.seo_title }}</h1>
                    <p class="info-body">{{ item.seo_description }}</p>
                </div>
            </router-link>
        </ul>
    </div>
</template>
<script>
import mui from '../../lib/mui/js/mui.min.js'
export default {
    data: function(){
        return {
            cates: [],
            list: []
        }
    },
    mounted(){
        mui('.mui-scroll-wrapper').scroll({
            deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
        })
        this.getAllCategory()
        this.getCategoryImage(0)
    },
    methods: {
        getAllCategory(){
            this.$http
                .get('api/getimgcategory')
                .then(result => {
                    if (result.body.status === 0) {
                        result.body.message.unshift({title: '全部', id: 0})
                        this.cates = result.body.message
                    }
                })
        },
        getCategoryImage(category_id){
            this.$http
                .get('api/getimages/' + category_id)
                .then(result => {
                    if (result.body.status === 0) {
                        this.list = result.body.message
                    }
                })
        }
    }
}
</script>
<style lang="scss" scoped>
    #slider{
        touch-action: pan-y;
    }
    .photo-list{
        list-style: none;
        margin: 0;
        padding: 10px;
        padding-top:5px;
        li{
            display: block;
            position: relative;
            margin-bottom: 10px;
            text-align: center;
            background-color: #ccc;
            box-shadow: 0 0 6px #999;
            img{
                width: 100%;
                vertical-align: middle;
            }
            img[lazy=loading] {
                width: 40px;
                height: 300px;
                margin: auto;
            }
            .info{
                position: absolute;
                max-height: 84px;
                overflow: hidden;
                bottom: 0;
                background-color: rgba(0, 0, 0, .4);
                color: white;
                text-align: left;
                .info-title{
                    font-size: 14px;
                }
                .info-body{
                    font-size: 13px;
                    color: white;
                }
            }
        }
    }
</style>

